Quote:
Originally Posted by SonicVQ
This is a good example of why it's import find Nissan's definition of the code:
P0447 - An improper voltage signal is sent to ECM through EVAP canister vent control valve.
It is not your gas cap.
It looks to be the canister vent control valve or wiring.
This is located in the charcoal canister at the back of the vehicle.
Find and use the FSM to troubleshoot. Most parts are easy to access.
Good luck!
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That is correct, however, the vent control valve 'circuit' includes the gas cap. IIRC, the first step in the FSM for that code is to check the gas cap. Part of the problem is that the OP didn't give us the mileage on the car, plus Nissan sent out recall letters about that canister and that it could be damaged due to over-filling of the gas tank. The more you know.....
